Abstract: Systems, methods, and circuitries for regulating voltage supplied to a power amplifier are disclosed. In one example, a buck-boost control system is configured to control a buck-boost converter to operate in either a buck mode or a boost mode. The system includes compensator circuitry configured to determine a target current based on a difference between a target voltage and a regulated output voltage of the buck-boost converter and determine a tolerance current that, with the target current, defines a range of expected coil current for the present operating mode. Based on the difference between the target voltage and the regulated output voltage, a charge control signal or a discharge control signal is generated for the converter to cause the coil current to approach the target current. Mode control circuitry is configured to switch the buck-boost converter to the other operating mode when the coil current reaches the tolerance current.

Abstract: An electrical circuit used for measuring times is disclosed. In one embodiment, the electrical circuit has a counter, a decoder and a multiplicity of time trap elements. At least the counter and the time trap elements are located together on an integrated semiconductor component. Each time trap element has a data input, a clock input, a delay output and a output port. The time trap element contains a delay element and a flip flop. The delay element outputs a signal change at the data input with a time delay at the delay output. The flip flop has a data input, a clock input and an output port, the data inputs, the clock inputs and the output ports of the flip flop and of the time trap element being connected to one another. The time trap elements are connected as ring oscillator.

Abstract: An electrical circuit used for measuring times is disclosed. In one embodiment, the electrical circuit has a counter, a decoder and a multiplicity of time trap elements. At least the counter and the time trap elements are located together on an integrated semiconductor component. Each time trap element has a data input, a clock input, a delay output and a output port. The time trap element contains a delay element and a flip flop. The delay element outputs a signal change at the data input with a time delay at the delay output. The flip flop has a data input, a clock input and an output port, the data inputs, the clock inputs and the output ports of the flip flop and of the time trap element being connected to one another. The time trap elements are connected as ring oscillator.

Abstract: A current generating device is characterized in that it is configured for, in response to a predetermined event, temporarily impresses a current, which is modified in comparison to the usual current, onto a device connected to the current generating device. In addition, a voltage generating device is configured for, in response to the predetermined event, temporarily applying a voltage, which is modified in comparison to the usual voltage, to the device connected to the voltage generating device.

Abstract: A current generating device is characterized in that it is configured for, in response to a predetermined event, temporarily impresses a current, which is modified in comparison to the usual current, onto a device connected to the current generating device. In addition, a voltage generating device is configured for, in response to the predetermined event, temporarily applying a voltage, which is modified in comparison to the usual voltage, to the device connected to the voltage generating device.

Abstract: An EEPROM with two-transistor memory cells with source-side selection, and a method for triggering such a EEPROM are described. The EEPROM and the method are distinguished in that the programming voltage required to program a memory cell is delivered via a source line. As a result the EEPROM can be protected in a simple way against unintended loss of the data stored in it.